Microsoft has released a support bulletin that warns users of a new issue in Windows 10 that could cause Thunderbolt devices to stop working under certain situations. The issue is occurring to users running Windows 10, version 1909, 1903, 1809, 1803, or 1709, and have multiple devices plugged into a Thunderbolt dock. Microsoft states that you just need to restart your computer to get your devices working again. This issue only happens under certain circumstances and even then, only has a 5% failure rate, so it should not affect many people.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-warns-of-uncommon-windows-10-thunderbolt-issue/